Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1c4c559bc948b5f…

MALICIOUS

PDF

52.1 KB Created: 2020-08-24 22:26:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e446beadccd90f927c1e5e67c8a3f016 SHA-1: ecad29212a4d42eabe07166e3ef0b7740a4ed4cc SHA-256: f1c4c559bc948b5f7a36e17d50ce34ede5a6188ad67c00a0944fa3695c739e90
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a malicious redirector link that points to 'ttraff.com'. This URL is designed to lure users into downloading further malicious content, likely disguised as a PDF document. The ML classifier strongly indicates maliciousness, and the PDF structure suggests it's part of a link farm for SEO manipulation to distribute malware.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.com/pify?keyword=mean+median+mode+examples+with+answers+pdf In PDF document text
    • http://files.tandemmom.com/uploads/1/3/0/8/130813692/givamono.pdfIn PDF document text
    • http://perupe.solidgroundpsych.com/uploads/1/3/1/3/131380771/6d9b2d7.pdfIn PDF document text
    • http://files.rbjewellery.co.uk/uploads/1/3/1/3/131383942/pexuzozuwuxofi_vexen_dojopariki.pdfIn PDF document text
    • http://mosorif.epic-herbs.com/uploads/1/3/0/7/130740597/kigamakubi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8957/6601/files/99245387376.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1130/7682/files/pemojebe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5458/7288/files/69114643945.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9301/5195/files/48753925623.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9707/1524/files/53699609913.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0127/3750/files/vomefejakosodakuja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0002/1667/files/luvigetasivitofe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8207/8613/files/fuwatoritopamuroxij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2750/4024/files/temipawozelelixokozij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3278/0701/files/advanced_transport_phenomena_john_c._slattery.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
🗂 Part of campaign: mitchellhabitat.org 8 samples

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008a56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A56 5444 bytes
SHA-256: 97aaa016e76d65db450d1aadac2ff7a544dd82235e507d911a59a4e5cefde2e8
font_01_sfnt_off00009cc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CC3 11240 bytes
SHA-256: 9768ae81baf445ac8782f23ed2fff402122e7ed2ddc9d106c6532804ab4a5bfd

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